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l-� 3 0 CONCLUSIONS, RECOMMENDATIONS AND PROJECT STATUS <br /> Between September 18, and December 17, 2001, the groundwater surface beneath the site rose <br /> ' an average of 1 77 feet, the groundwater flow direction shifted approximately 45 degrees to the <br /> southwest, and the groundwater gradient remained relatively constant <br /> rConcentrations of petroleum hydrocarbons including TPH-as-diesel, TPH-as-gasoline and BTEX <br /> compounds also remained relatively constant between September and December 2001 The <br /> oxygenate compounds and 1,2-DCA continued to be below laboratory detection limits <br /> ' On July 16, 2001, Ramage Environmental published Work Plan, Additional Site Investigation <br /> PHS/EHD approved the work plan on July 25, 2001 Currently, implementation of the approved <br /> scope of work is pending an encroachment permit approval from the city of Manteca <br /> 10 <br />